ONETOC2 File

What are ONETOC2 files and how to open them

Are you having problems opening an ONETOC2 file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your ONETOC2 files.

What is an ONETOC2 file?

An .ONETOC2 file is an OneNote table of contents file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open ONETOC2 files

Important: Different programs may use files with the ONETOC2 file extension for different purposes, so unless you are sure which format your ONETOC2 file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested three different ONETOC2 openers which you will find listed below.

Last updated: February 24, 2023

Various apps that use files with this extension

These apps are known to open certain types of ONETOC2 files. Remember, different programs may use ONETOC2 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ONETOC2 file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.